I have a question about the quality of general USB interfaces. Most people use a DI of sorts, but what is the quality of a bass without one? Straight from the bass to the interface. Is the DI necessary to conjure a decent tone? My plan is to purchase a Focusrite Scarlett 2i2 USB interface, and if necessary a Hartke VXL Bass attack. I would rather not drop the extra hundred dollars on the Hartke DI, but I do want flexibility in tone, and I believe with the DI I will be able to make a serviceable sound. I like the idea of having a DI and a pedal to shape the tone, so it appears this Hartke DI is the perfect fit for me. I just want to know if the purchase will make a notable difference. Also, on the subject of interfaces, if anyone has experience with one, I'd love to hear how the Scarlett 2i2 functions and sounds. Thanks for reading.